Moisture and Mold in Housing
Land Code Ch. 12 § 16 (apartment defect), Environmental Code Ch. 9 § 9 (health nuisance)
What does it mean?
Moisture and mold problems in housing are a serious indoor environment issue that can cause health problems such as allergies, asthma, and respiratory infections. Common causes include poor ventilation, roof or pipe leaks, condensation on cold surfaces, and moisture intrusion from the foundation. Mold thrives in humid environments with relative humidity above 70%.
As a tenant, you have the right to demand that the landlord addresses moisture and mold problems — it constitutes a defect in the apartment that may entitle you to a rent reduction. The property owner is obligated to investigate the cause and take remedial action. If the landlord fails to act, you can report to the municipality's environmental health board, which can order the property owner to fix the problem.
Key Points
- Mold can cause allergies, asthma, and respiratory infections
- Common causes: poor ventilation, leaks, condensation, and ground moisture
- Tenants have the right to rent reduction for moisture problems
- The property owner is obligated to investigate and fix the cause
- Can be reported to the municipal environmental health board
Practical Tip
Document all visible moisture and mold with photos and dates. Report in writing to the landlord immediately — the longer you wait, the worse it gets. If you experience health issues, see a doctor and save medical certificates. Avoid just painting over mold — the root cause must be addressed first.
Legal Basis: Land Code Ch. 12 § 16 (apartment defect), Environmental Code Ch. 9 § 9 (health nuisance)